* {
  margin: 0;
  padding: 0;
  font-size: 1em;
}
.main {
  display: flex;
  flex-direction: column;
  width: 100vw;
  height: 100vh;
  justify-content: center;
  align-items: center;
}
.calc {
  height: 300px;
  width: 212px;
}
.input {
  width: 210px;
  height: 30px;
  margin-bottom: 10px;
  font-size: 1.3em;
  border-style: groove;
}

button {
  width: 50px;
  height: 50px;
}
.delete_button {
  padding: 0;
  margin: 0;
}
.delete {
  width: 30%;
  height: 30%;
}
